MALICIOUS — sijirige.pdf
MALICIOUS — sijirige.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100). 2 of 50 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
a3ac426f5a8b2756e2bdf4de7d7239711e5632fcb2ccf0d1a67484cf7563c407 - SHA-1:
f249d1003c27a2a27c57cfd081ed84d62542ea51 - MD5:
5bc2dfc18e2fd8ecf546fec6ebf0b670 - ssdeep:
768:ugGzpDBE3R67XEeVk5XihjV6DkTacV8y2FSOP0QqNmQDJ3OEHRv:LGFV/V+0VukTac0uQqNmIMEHRv - TLSH:
T1AD34AFF35047DECC378A9F135AAB205DA14AD34C3233965058987B2CD8BC6AD6F91970 - Submitted as: sijirige.pdf
- File type: pdf · Size: 52519 bytes
- Verdict: malicious (96/100)
Detections (2 of 50 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 96/100 is the fusion of 9 weighted signals:
- Dropped a malicious payload (Lazarus): root_.cache_dconf_user - dynamic signal, weight 0.80, confidence 0.90
- Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule
PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85 - Contacted 34 external host(s) at runtime (7 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/f9a03069-48a3-4228-a6d9-bdbad17f7365/2016_mercedes-_benz_maybach_s600_sedan.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/wb?keyword=ap%20polytechnic%20lecturers%20notification%202019%20pdf%20download, https://uploads.strikinglycdn.com/files/f9a03069-48a3-4228-a6d9-bdbad17f7365/2016_mercedes-_benz_maybach_s600_sedan.pdf, https://cdn-cms.f-static.net/uploads/4366958/normal_5f8958c883bbe.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Extracted generic config (7 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9762 behavior events · 1 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- ntp.ubuntu.com
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- /opt/CAPEv2/storage/analyses/30245/files/0b03528fdbb82154a74f3a36b8e1643f2c812ba5f55a580cc885e1f57747fefc -
0b03528fdbb82154a74f3a36b8e1643f2c812ba5f55a580cc885e1f57747fefc - /opt/CAPEv2/storage/analyses/30245/files/b7a42a648e1efd540bfcb36b922a14230513d90f44d3b8a7f01c35cd5aee4122 -
b7a42a648e1efd540bfcb36b922a14230513d90f44d3b8a7f01c35cd5aee4122 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 - tmp_tmp.uzNgo4Q9qZ -
ee4dcf6ce314595b0d66431bc2c54e4848896a27e2b553425614c6bf2b7add34
Embedded URLs
- https://cctraff.ru/wb?keyword=ap%20polytechnic%20lecturers%20notification%202019%20pdf%20download
- https://s3.amazonaws.com/rovikibixu/rurofomor.pdf
- https://uploads.strikinglycdn.com/files/f9a03069-48a3-4228-a6d9-bdbad17f7365/2016_mercedes-_benz_maybach_s600_sedan.pdf
- https://s3.amazonaws.com/jevuxozazebazug/between_the_shadow_and_the_soul_ao3.pdf
- https://cdn-cms.f-static.net/uploads/4366958/normal_5f8958c883bbe.pdf
- https://uploads.strikinglycdn.com/files/86805acd-f463-4f5f-a830-22cdcf93ca54/miretojokusakajenit.pdf
- https://s3.amazonaws.com/pazifetanegapu/analytical_chemistry_notes_for_bsc.pdf
- https://s3.amazonaws.com/pazifetanegapu/27868033678.pdf
- https://uploads.strikinglycdn.com/files/ef7f34c1-82be-4f48-b907-b07c53759f78/46851884513.pdf
- https://s3.amazonaws.com/zaxawetawupo/manual_canon_eos_rebel_t3i_portugues.pdf
- https://uploads.strikinglycdn.com/files/57a20cfe-20d7-4975-9d69-33266981cd14/zuwurew.pdf
- https://s3.amazonaws.com/lorifumofelu/analytical_writing_gre.pdf
- https://cdn-cms.f-static.net/uploads/4370561/normal_5f8d7d6cc85f3.pdf
- https://s3.amazonaws.com/rebesudanolo/mexanaw.pdf
- https://s3.amazonaws.com/vuliwisuwig/97492250236.pdf
- https://s3.amazonaws.com/gadumagabusodel/62411612629.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded domains
- cctraff.ru
- s3.amazonaws.com
- uploads.strikinglycdn.com
- cdn-cms.f-static.net
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 74.178.76.44
- 52.110.12.54
- 52.230.59.222
- 4.230.171.124
- 52.168.112.66
- 20.112.250.133
- 52.123.128.14
- 40.99.133.242
- 135.232.92.34
- 203.26.79.13
- 20.184.175.18
- 52.123.252.219
- 135.233.95.144
- 135.233.45.222
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report